Four-fluorine lining reactor

The four-fluorine lined reactor is a reactor with an inner surface that has been treated for corrosion resistance. The inner surface is coated with four-fluine by spraying or rolling, and the thickness can be determined according to the operating conditions! In the production application, it is often necessary to add various chemical or aids, and the characteristics of the aids are complex, which puts forward requirements for the design and manufacture of the reactor. For example, for an acid-resistant reactor acid resistance is generally designed to use an inner lining four-fluorine lined reactor, which has the characteristics of acid, alkali, and high temperature resistance, can be custom processed. Advantages: corrosion resistance, durability and strength, more advanced, purer, economical, can be customized according to customer requirements, efficient manufacturing.

Sulfuric acid, hydrochloric acid, water treatment, acid pipelines, desalinated water, liquor pipelines, chlorine dioxide, high temperature conditions, full vacuum service. Under the condition of the highest rated temperature and full vacuum PTFE, PCTFE, PVDF, PEPPFA, PO, PE and PP linings are considered to meet or exceed all ASTM standards.

Withstand strong acids, strong bases, withstand negative pressure of 01 MPa, positive pressure of 72 kg, withstand high and low temperatures of -193 degrees to  260 degrees, anti-ad, wear resistance, anti-static, etc. For example, hydrofluoric acid 72%, hydrochloric acid, nitric acid, phosphoric acid ammonia water, aqua regia, hydrogen peroxide, bromides, and other highly corrosive chemicals can be withstood. The fluorine-res materials lined include: PFA/FEP/ETFE/ECTFE/PVDF (with glass fiber) and PTFE imported and domestic board four-orine lining. Roll coating F40 (thickness 2-3mm). Spray coating PTFE, PFA, F40.

1. There are three kinds of temperature resistance: 150℃, 00℃, 260℃ above. The chemical medium is the same, but the temperature resistance is different.
2. Membrane thickness:. For corrosion resistance, it is generally lined to 1mm-4mm.

PTFE, FEP, PFA, ETFE divided into several basic types:

• PTFE: PTFE (polytetrafluoroethylene) non-stick coating can be continuously at 260℃, with the highest use temperature of 290-300℃, extremely low friction coefficient, good wear resistance and chemical stability.
• FEP: FEP (fluoroethylene propylene copolymer) non-stick coating is melted and flows to form seamless film during baking, with excellent chemical stability and excellent non-stick properties, and the highest use temperature is 200℃.
• FA: PFA (perfluoroalkylation) non-stick coating is the same as FEP in that it melts and flows to form a seamless during baking. The advantage of PFA is that it has a higher continuous use temperature of 260℃, stronger toughness, and is particularly suitable for in high temperature conditions for anti-sticking and chemical resistance.
• ETFE: ETFE is an ethylene and tetrafluoroethyleneolymer, and the resin is a tougher fluoropolymer that can form a highly durable coating with excellent chemical resistance and can be used continuously at 150.

After PTFE coating, it has the following characteristics:

1. Non-stickiness: no substance adheres to the PTFE coating. Even a very thin film shows good non-adhesion performance. It does not stick to water, oil, is not easy to stick to solutions during production operations. If there is a small amount of dirt, it can be easily wiped off. The shutdown time is short, labor time and improving work efficiency.
2. Heat resistance: PTFE coating has excellent heat resistance and low-temperature resistance. It can withstand temperatures up to 300℃ for a short time, and can be used continuously between 240℃ and 260℃. It has thermal stability. It can work at freezing temperatures without brittleness and does not melt at high temperatures.
3. Slipperiness: PE coating has a low coefficient of friction. The coefficient of friction changes when there is load sliding, but the value only ranges from 0.05 to .15.
4. Moisture resistance: The surface of the PTFE coating does not stick to water and oil, and it not easy to stick to solutions during production operations. If there is a small amount of dirt, it can be easily wiped off. The shutdown time is short, saving time and improving work efficiency.
5. Wear resistance: Under high load, it has excellent wear resistance. Under certain load, it has the dual of wear resistance and non-adhesion.
6. Corrosion resistance: PTFE is hardly corroded by chemicals, and it can protect from any kind of chemical corrosion.